How To Fix /SAPAPO/TSM791 - Data source & is not assigned to a planning area

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/TSM -

• Message number: 791

• Message text: Data source & is not assigned to a planning area

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TSM791 - Data source & is not assigned to a planning area ?

  The SAP error message /SAPAPO/TSM791 indicates that a specific data source is not assigned to a planning area in the SAP Advanced Planning and Optimization (APO) module. This error typically arises when you are trying to execute a planning function or process that requires data from a data source that has not been properly configured or linked to a planning area.
  Cause:
  
  Data Source Not Assigned: The primary cause of this error is that the data source you are trying to use has not been assigned to any planning area in the system.
  Configuration Issues: There may be issues in the configuration of the planning area or the data source itself.
  Transport Issues: If the configuration was recently transported from another system, it may not have been set up correctly in the target system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Data Source Assignment:
  
  Go to the SAP APO system and navigate to the planning area configuration.
  Use transaction code /SAPAPO/TSM to access the planning area settings.
  Check if the data source in question is assigned to the relevant planning area.
  
  
  
  Assign Data Source:
  
  If the data source is not assigned, you can assign it by editing the planning area configuration.
  Ensure that the data source is correctly linked to the planning area you are working with.
  
  
  
  Review Configuration:
  
  Verify that the configuration of both the planning area and the data source is correct.
  Check for any inconsistencies or missing settings that could lead to this error.
  
  
  
  Transport Issues:
  
  If the issue arose after a transport, ensure that all necessary objects and configurations were included in the transport request.
  You may need to manually adjust the settings in the target system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for detailed steps on configuring planning areas and data sources.
  
  
  
  Testing:
  
  After making the necessary changes, test the planning function or process again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/TSM for planning area configuration and /SAPAPO/DP for demand planning.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles: Ensure that you have the necessary authorizations to make changes to planning area configurations.
  
  By following these steps, you should be able to resolve the /SAPAPO/TSM791 error and ensure that your data sources are correctly assigned to the appropriate planning areas in SAP APO.